Personally I would be suspicious, but then thats me all over! I would not be happy one little bit, I dont think that he was necessarily with her today when you called him, maybe he isnt happy that you accused him and thats why he was blunt...I wouldnt like the flirtacious msgs and if it were me, I would have called her myself and asked her what she was playing at, probably not a lot of people on here will agree with me, but thats what I would do. If it is making you feel that bad, tell him it stops and it stops now or your marraige is in danger, also put it to him, how would he feel if the tables were turned and you were going out at lunchtimes with another man (even if only for walks) and how would he feel also if you had texts from this man that were flirty...dont think hubby would be very happy!!!! Does he stay out some nights, is he home late, does he go out with the lads a bit too often, has his phone habits changed and has he changed his appearance, you need to ask yourself all of these questions. My heart goes out to you, it really does...best of luck x